The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2009
Filed:
Mar. 21, 2008
Ryo Sakurai, Tokyo, JP;
Hidetoshi Hiraoka, Tokyo, JP;
Taichi Kobayashi, Tokyo, JP;
Hirotaka Yamazaki, Tokyo, JP;
Hajime Kitano, Tokyo, JP;
Ryo Sakurai, Tokyo, JP;
Hidetoshi Hiraoka, Tokyo, JP;
Taichi Kobayashi, Tokyo, JP;
Hirotaka Yamazaki, Tokyo, JP;
Hajime Kitano, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
In an image display panel: in which at least one group of particles or liquid particles is sealed between opposed substrates, at least one of two substrates being transparent; in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image; and in which partition walls arranged between the substrates according to need, use is made of the substrate in which at least a surface, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (first aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (second aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is coated by a material having a small charge decay property (third aspect), a universal hardness of a binder resin used for a material constituting the partition wall is not less than 400 N/mm, which is obtained by a method of measuring a universal hardness in which the binder resin constituting the partition wall having a thickness of 3 μm is formed on a glass substrate having a universal hardness of 2000 N/mm(fourth aspect), a ratio Lh/Lw between a height Lh and a width Lw of the partition wall satisfies 0.5≦Lh/Lw≦20 (fifth aspect), and the partition wall has a predetermined drying function (sixth aspect).